<template>
  <el-form ref="deptForm" label-width="120px" :rules="rules" :model="form">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select v-model="form.manager" style="width:80%" placeholder="请选择">
        <el-option v-for="item in list " :key="item.id" :value="item.username" :label="item.username" />
        <!-- <el-option value="2" label="大漂亮" /> -->
      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="hCancel">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { getEmployeeSimple, addDepartments, getDepartDetail, updateDepartments } from '@/api/departments'
export default {
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    // 自定义检测规则函数
    const existCodeValid = (rule, value, callback) => {
      // 验证输入的编码value在所有部门中是否存在
      let existCodeList = this.originList.map(item => item.code)
      if (this.isEdit) {
        // 把当前正在编辑的部门编号（this.id）排除在外
        console.log('现在是编辑状态，正在编辑的id是', this.id)
        // 过滤掉当前的部门, map得到部门编号列表
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      console.log(existCodeList, 'existCodeList')
      //   // 存在,校验失败
      //   callback(new Error(`部门编码:${value}已存在`))
      // } else {
      //   // 不存在,放行 callback()
      //   callback()
      // }
      existCodeList.includes(value) ? callback(new Error('编码' + value + '已经存在'))
        : callback()
    }
    const existNameValid = (rule, value, callback) => {
      let existNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      console.log(existNameList, 'existNameList')
      if (this.isEdit) {
        // 把当前正在编辑的部门编号（this.id）排除在外
        console.log('现在是编辑状态，正在编辑的id是', this.id)
        const pid = this.originList.find(item => item.id === this.id).pid // 根据this.id获取当前对象的id
        const brothers = this.originList.filter(item => item.pid === pid) // 找到所有兄弟包括自己
        existNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)
      }
      if (existNameList.includes(value)) {
        callback(new Error('部门' + value + '已经存在'))
      } else {
        callback()
      }
    }

    return {
      // 表单手机的数据对象
      form: {
        name: '', // 部门名称
        code: '', // 部门编码
        manager: '', // 部门管理者
        introduce: '' // 部门介绍
      },
      rules: {
        name: [
          { required: true, message: '部门名称不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门名称要求1-50个字符', trigger: 'blur' },
          { validator: existNameValid, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '部门编码不能为空', trigger: 'blur' },
          { min: 1, max: 50, message: '部门编码要求1-50个字符', trigger: 'blur' },
          { validator: existCodeValid, trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '部门负责人不能为空', trigger: ['blur', 'change'] }
        ],
        introduce: [
          { required: true, message: '部门介绍不能为空', trigger: 'blur' },
          { min: 1, max: 300, message: '部门介绍要求1-300个字符', trigger: 'blur' }
        ]
      },
      list: [] // 保存的是部门负责人
    }
  },
  // watch: {
  //   // 'id': {
  //   //   handler: function(newVal, oldVal) {
  //   //     console.log('id变了！ 新值：', newVal, '旧值', oldVal)
  //   //     // 重发请求获取详情
  //   //     this.loadDepartmentDetailById()
  //   //   },
  //   //   immediate: true
  //   // }
  //   'id': function(newVal, oldVal) {
  //     console.log('id变了！ 新值：', newVal, '旧值', oldVal)
  //     // 重发请求获取详情
  //     this.loadDetail()
  //   }
  // },
  created() {
    this.loadEmployeesSimple()
    this.loadDetail()
  },
  methods: {
    async loadDetail() {
      if (this.isEdit) {
        // alert('现在是编辑，要去获取详情')
        const res = await getDepartDetail(this.id)
        console.log('现在是编辑，要去获取详情', res)
        this.form = res.data
      }
    },
    async loadEmployeesSimple() {
      try {
        const res = await getEmployeeSimple()
        console.log(res, 'getEmployeeSimple')
        this.list = res.data
      } catch (error) {
        console.log(error)
      }
    },
    // 实现新增子部门
    async doAdd() {
      try {
        // this.form ,参数缺少pid
        const res = await addDepartments({ ...this.form, pid: this.id })
        console.log(res, 'addDepartments')
        // 子传父 关闭弹窗,刷新页面
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    async doEdit() {
      try {
        await updateDepartments(this.form)
        this.$message({ type: 'success', message: '修改成功' })
        this.$emit('success')
      } catch (err) {
        console.log(err)
        this.$message({ type: 'error', message: err })
      }
    },
    // 确定
    hSubmit() {
      // 2.兜底校验
      this.$refs.deptForm.validate((valid) => {
        if (!valid) return
        // 验证通过
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    // 取消
    hCancel() {
      // 通知父组件去关闭弹层
      this.$emit('close')
    },
    // 清空表单
    resetForm() {
      this.$refs.deptForm.resetFields()
    }
  }
}
</script>

<style>

</style>
